Pancreaticoduodenectomy (PD)is the treatment of choice for patients with periampullary tumour (benign or malignant). In the recent years, the mortality rate of PD has decreased to 5% in many centers. However, pancreatic fistula (POPF) still occurs in 5 % to 40% of patients after PD. The hypothesis that isolated Roux loop PJ with isolated pancreatic drainage decrease the incidence of PF and severity with preservation of pancreatic function.